diff --git a/src/os/darwin/darwin_sigar.c b/src/os/darwin/darwin_sigar.c
index 9fcbb807..05efd3d6 100644
--- a/src/os/darwin/darwin_sigar.c
+++ b/src/os/darwin/darwin_sigar.c
@@ -23,7 +23,9 @@
 
 #include <sys/param.h>
 #include <sys/mount.h>
+#ifdef DARWIN
 #include <nfs/rpcv2.h>
+#endif
 #include <nfs/nfsproto.h>
 
 #ifdef DARWIN